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' P. GATELY SAFETY ATTACHMENT FOR ELEVATORS.

No. 243,771. Patented July 5,1881.

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UNITED STATES PATENT OFFICE.

PATRICK GATELY, OF NEW YORK, N. Y.

SAFETY ATTACHMENT FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 243,771, dated July 5,1881.

Application filed May 19, 1881. (No model.)

To all whom it may concern:

Be it known that I, PATRICK GA'rELY, a citizen of the United States,residing at New York, in the county and State of New York, haveinventeda new and useful Safety Attachment for Elevators, of which the followingis a specification, reference being bad to the accompanying drawings.

My invention relates to an attachment for an elevator which has apulleyor drum on which the hoisting-rope winds; and it consists in aframe or receiver so located with reference to said drum, and soconnected to and operating with the valve and other mechanism, ashereinafter described, that should the said rope break or become looseon the drum the loosened rope, by falling on said frame or receiver,shall be the means of stopping the motive engine.

In the drawings,]3igure 1 is a side elevation of so much of a deviceembodying my invention as serves for illustration. Fig.2 is a plan, andFig. 3 a front elevation, of the same.

The drum or pulley A, on which winds the hoisting-rope a, is on theshaft 1), and is located in the machine in the ordinary manner.

Under the drum A, in suitable relation thereto, is the frame or receiverB,which is of sufficient size and of construction proper to receive anypart of the rope to which may drop or sag down from close contact withthe drum. The frame B is so hung as to form part of a lever, or beattached to a lever, G, pivoted as by the bar or shaft 0, having placesof hearing d d in fixed supports. There is an arm, 6, of the lever G,which is weighted or is of sufficient weight to keep the lever in theposition shown when there is no extra weight on the frame B. There isanother arm, f, of the lever O, to which is pivoted a rod, D. The otherend of this rod rests on a fixed pin or stop, g. There is another lever,E, having a weight, it, and pivoted at t to a fixed support.

One arm, j, of the lever E is to move part of a clutch, F; and the otherarm, 70, rests on the rod D when the part I of the clutch is out ofengagement with the other part, on. The clutch F is on a shaft, G, whichis to revolve in suitable fixed bearings, the part m being fixed to theshaft, and the part I being loose on the shaft and having fixed to it agear,

H. In proper relation to the gear H to engage therewith is a segment, I,of a gear, which is pivoted at a to fixed supports.

On the segment I is a stud or pin, 0, on which is pivoted one end of arod, J. The other end of this rod is pivoted to a lever, K, at 19. Oneend of the lever K is pivoted to a fixed support at q.

The pipe L may represent the exhaust-pipe of the engine, or thesupply-pipe, or the valvechest. It contains avalve for closing thepassage inbox M, having the valve-stem r. A lever, N, havinga weight, 8,is pivoted at one end, 2., to a fixed support, and rests at the otherend on the lever K, as shown, when the valve in box M is open.

The mechanism being substantially as described, and the parts inposition, as shown in the drawings, when the rope a breaks or becomesloose on the drum, as the result of the elevator-car getting caught, orfrom other causes, it will drop or sag onto the frame B, moving the samedownward and swingingthe lever (l. The end of the rod D will thereforebe pulled from under the lever E, which will swing, being moved bytheweight It, and bring the part I of the clutch into engagement with thepart m, so that the gear H will be revolved by the shaft G, this shaftbeing in constant revolution while the engine is in operation. Thesegment I, being in engagement with the gear, will be swung, and hencethe lever K will be pulled from under the lever N by means of the rod J.The lever N will thereupon be swung downward by the weight 8, and hencethe valve be moved by means of the stem 4', and the passage of steam orwater stopped, and the engine will cease to act. Further disarrangementof the hoisting-rope, and any accident that might result from thecontinued motion of the engine and machine, including the revolving ofthe drum A, while the free movement of the car is obstructed, will thusbe prevented. Before the engine and machine are again put in action theengineer or other person in charge will put the mechanism described incondition for action, as specified.

I claim as my invention- 1. In an elevator, a frame or receiver set inrelation to the drum on which winds the hoist- I r v I 4. Thecombination of the lever N, to operate the valve, with the lever K, rodJ, and mechanism for moving rod J by the hoistingrope, substantially asspecified.

5. In an elevator, a valve for closing the supply or exhaust passage ofthe motive engine, operated by the hoisting-rope when it drops from orbecomes loose on the drum, substantially as set forth.

6. An elevator mechanism, substantially as described, whereby thehoisting-rope, when it falls from or becomes loose on the drum,connects, for moving a valve, 9.- part of the machinery, as the shaftGr, having continued motion.

PATRICK GATELY.

Witnesses:

ARTHUR S. VAN VooRHrs, THEODORE T. HARCALL.

